Just to confirm.
With the first version, my experience has been that the time clause will
apply on both the backup and delete. I have not found a way to separate
them.
The nice thing is that this guarantees me no log will be deleted unless
it is successfully backedup. I can always rely on the os to do that, but
this negates the idea of using rman.
I will run a test and post back.

I believe you can and RMAN has multiple options to do this.
It can be a simple 1 step process or a 2 step process.

In a one step process you would code something like this.
backup AS COMPRESSED BACKUPSET ARCHIVELOG ALL ARCHIVELOG UNTIL TIME
'SYSDATE - 1' delete input ;

Not very well documented but it works. Search metalink and you will find
references to it.
Or you can do a second backup for the ones to delete.
As for the standby question I think it is easier in 11G but in 10 you
have to do some work up front and generate a script dynamically to do
the stuff you want.

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